<template>
  <div>

    <div style="margin: 10px 0">
      <el-input placeholder="请输入名称" suffix-icon="el-icon-search" style="width: 200px" v-model="username"></el-input>
      <el-input placeholder="请输入邮箱" suffix-icon="el-icon-message" class="ml-5" style="width: 200px"
                v-model="email"></el-input>
      <el-input placeholder="请输入地址" suffix-icon="el-icon-position" class="ml-5" style="width: 200px"
                v-model="address"></el-input>
      <el-button type="primary" class="ml-5" @click="load">搜索</el-button>
      <el-button type="warning" style="margin-left: 2px" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增<i class="el-icon-circle-plus-outline"></i></el-button>
      <el-popconfirm
          class="ml-5"
          confirm-button-text='确定'
          cancel-button-text='取消'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="deleteBatch"
      >
        <el-button type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>
      <el-upload style="display: inline-block" action="http://localhost:9090/user/import"
                 accept="xlsx" :on-success="handleExcelImportSuccess" :show-file-list="false">
        <el-button type="primary" class="ml-5">导入<i class="el-icon-bottom"></i></el-button>
<!--        <el-button size="small" type="primary">点击上传</el-button>-->
      </el-upload>

      <el-button type="primary" class="ml-5" @click="exp">导出<i class="el-icon-top"></i></el-button>
    </div>
    <el-table :data="tableData" border stripe :header-cell-class-name="headerBg"  @selection-change="handleSelectionChange">
      <el-table-column
          type="selection"
          width="55">
      </el-table-column>
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="username" label="用户名" width="140"></el-table-column>
      <el-table-column prop="nickname" label="昵称" width="120"></el-table-column>
      <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="phone" label="电话"></el-table-column>
      <el-table-column prop="address" label="地址"></el-table-column>
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button type="success" @click="handleEdit(scope.row)">编辑<i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              class="ml-5"
              confirm-button-text='确定'
              cancel-button-text='取消'
              icon="el-icon-info"
              icon-color="red"
              title="您确定要删除吗？"
              @confirm="handleDelete(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>
    <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form label-width="80px"  size="small">
        <el-form-item label="用户名" >
          <el-input v-model="form.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="昵称" >
          <el-input v-model="form.nickname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" >
          <el-input v-model="form.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="电话" >
          <el-input v-model="form.phone" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="地址" >
          <el-input v-model="form.address" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "User",
  data(){
    return{
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      username: '',
      email: '',
      address: '',
      form: {},
      dialogFormVisible:false,
      multipleSelection:[],
      headerBg: 'headerBg',
    }
  },
  created() {
    //  请求分页查询数据
    /*fetch("http://localhost:9090/user/page?pageNum="+this.pageNum+"&pageSize="+this.pageSize).then(res=>res.json()).then(res=>{
      console.log(res)
      this.tableData=res.data
      this.total=res.total
    })*/
    //改进版本
    this.load()
  },
  methods:{
    load() {
      // 使用fetch发送请求
      /*fetch("http://localhost:9090/user/page?pageNum="+this.pageNum+"&pageSize="+this.pageSize+"&username="+this.username).then(res=>res.json()).then(res=>{
        console.log(res)
        this.tableData=res.data
        this.total=res.total
      })*/

      // 使用axios发送get请求
      this.request.get("/user/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          username: this.username,
          email: this.email,
          address: this.address,
        }
      }).then(res => {
        // console.log(res)
        this.tableData = res.records
        this.total = res.total
      })
    },
    reset() {
      this.username = ""
      this.email = ""
      this.address = ""
      this.load()
    },
    handleAdd(){
      this.dialogFormVisible=true
      this.form={}
    },
    handleEdit(row){
      console.log(row)
      this.form=row
      this.dialogFormVisible=true
    },
    handleDelete(id){
      this.request.delete("/user/"+id).then(res=>{
        if(res.data){
          this.$message.success("删除成功")
          this.load()
        }else{
          this.$message.error("删除失败")
        }
      })
    },
    handleSelectionChange(val){
      console.log(val)
      this.multipleSelection=val
    },
    deleteBatch(){
      let ids=this.multipleSelection.map(v=>v.id) // 扁平化处理，把对象数组调整为id数组 [{},{},{}]=>[1,2,3]
      this.request.post("user/del/batch/",ids).then(res=>{
        if(res){
          this.$message.success("批量删除成功")
          this.load()
        }else{
          this.$message.error("删除失败")
        }
      })
    },
    save(){
      // 使用axios发送post请求
      this.request.post("/user",this.form).then(res=>{
        if(res.data){
          this.$message.success("保存成功") //弹出成功提示
          this.dialogFormVisible=false
          this.load()
        }else{
          this.$message.error("保存失败") //弹出失败提示
        }
      })
    },
    collapse() { //点击收缩按钮触发
      this.isCollapse = !this.isCollapse
      if (this.isCollapse) { //收缩
        this.sideWidth = 64
        this.collapseBtnClas = 'el-icon-s-unfold'
        this.logoTextShow = false
      } else {  //展开
        this.sideWidth = 200
        this.collapseBtnClas = 'el-icon-s-fold'
        this.logoTextShow = true
      }
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },
    exp(){
      window.open("http://localhost:9090/user/export")
    },
    handleExcelImportSuccess(){
      this.$message.success("导入成功")
      this.load()
    }
  }
}
</script>


<style>
  .headerBg {
    background: #efefef !important;
  }
</style>